About me: Psaro is a character in the Dragon Quest series that appears as the central villain of Dragon Quest IV, and a recurring monster.
He is a powerful demon with a passionate hatred for humanity. During his rise to evil, Psaro attempted to kill the Hero, sought the Secret of Evolution, and searched for the resting place of Estark, Ruler of Evil. Enraged by the death of his beloved, Psaro became Psaro the Manslayer.
Psaro's humanoid form has gone on to make regular appearances in spinoff games, starting with the second Dragon Quest: Monster Battle Road game. He is a boss in Dragon Quest of the Stars, is a secret character in Dragon Quest Heroes: The World Tree's Woe and the Blight Below, can join the player in Dragon Quest Monsters: Joker 3 Professional, Dragon Quest Monsters: Super Light, and Dragon Quest Tact, and was one of the original leader characters in Dragon Quest Rivals, representing the Demon Swordsman vocation. His younger self is the main character in Dragon Quest Monsters: The Dark Prince. His equipment also made a cameo appearance in Dragon Quest of the Stars, allowing players to dress up as the overpowered overlord himself.
After using the secret of evolution upon himself, Psaro takes up residence in Nadiria and becomes the final opponent that the Hero and party must face. Psaro the Manslayer is only the boss of Chapter 5, as in Chapter 6 that was added in the remakes where Aamon is the final boss.
In the remake-exclusive sixth chapter, the players hear word of a legendary bloom of the world tree that can fully revive the dead. Setting out to find the bloom, the Chosen Ones use it to revive Rose. Aware that she was murdered at the order of Aamon, she insists that she accompany the group to Nadiria to stop her lover. When she confronts the hideous form Psaro has become, the Secret of Evolution is undone by her tears and Psaro is returned to sanity. After being informed of Aamon's conspiracy, he joins the Chosen Ones as a playable character.
